Home / 56,421.20-77,876.16-35,188.04

Finding the Fourth Proportional to 56,421.20, 77,876.16 and 35,188.04

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Solution

The fourth proportional to 56,421.20, 77,876.16 and 35,188.04 is: 48,568.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,421.20 : 77,876.16 = 35,188.04 : x
  2. Step 2: Convert to fraction form
    56,421.20/77,876.16 = 35,188.04/x
  3. Step 3: Cross multiply
    56,421.20x = 77,876.16 × 35,188.04
  4. Step 4: Simplify right side
    56,421.20x = 2,740,309,433.13
  5. Step 5: Solve for x
    x = 2,740,309,433.13/56,421.20
  6. Step 6: Final answer
    x = 48,568.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.